Fixed dropdown search field height in ie11
Fixed dropdown search field height in ie11

Closes #19684

mmkassem/gitlabhq,axilleas/gitlabhq,mr-dxdy/gitlabhq,icedwater/gitlabhq,daiyu/gitlab-zh,t-zuehlsdorff/gitlabhq,screenpages/gitlabhq,darkrasid/gitlabhq,axilleas/gitlabhq,SVArago/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,daiyu/gitlab-zh,t-zuehlsdorff/gitlabhq,shinexiao/gitlabhq,jirutka/gitlabhq,dreampet/gitlab,shinexiao/gitlabhq,htve/GitlabForChinese,darkrasid/gitlabhq,darkrasid/gitlabhq,htve/GitlabForChinese,allysonbarros/gitlabhq,axilleas/gitlabhq,mmkassem/gitlabhq,dplarson/gitlabhq,mmkassem/gitlabhq,iiet/iiet-git,shinexiao/gitlabhq,daiyu/gitlab-zh,LUMC/gitlabhq,openwide-java/gitlabhq,icedwater/gitlabhq,jirutka/gitlabhq,allysonbarros/gitlabhq,stoplightio/gitlabhq,screenpages/gitlabhq,openwide-java/gitlabhq,dreampet/gitlab,t-zuehlsdorff/gitlabhq,mr-dxdy/gitlabhq,mr-dxdy/gitlabhq,mr-dxdy/gitlabhq,screenpages/gitlabhq,dplarson/gitlabhq,LUMC/gitlabhq,darkrasid/gitlabhq,daiyu/gitlab-zh,iiet/iiet-git,dreampet/gitlab,t-zuehlsdorff/gitlabhq,icedwater/gitlabhq,htve/GitlabForChinese,dplarson/gitlabhq,shinexiao/gitlabhq,dreampet/gitlab,iiet/iiet-git,stoplightio/gitlabhq,iiet/iiet-git,openwide-java/gitlabhq,dplarson/gitlabhq,allysonbarros/gitlabhq,jirutka/gitlabhq,htve/GitlabForChinese,stoplightio/gitlabhq,icedwater/gitlabhq,LUMC/gitlabhq,SVArago/gitlabhq,allysonbarros/gitlabhq,SVArago/gitlabhq,openwide-java/gitlabhq,stoplightio/gitlabhq,LUMC/gitlabhq,jirutka/gitlabhq,screenpages/gitlabhq,SVArago/gitlabhq